CN100431008C - Micro-actuator, magnetic head universal suspension support assembly and magnetic disc driver - Google Patents
Micro-actuator, magnetic head universal suspension support assembly and magnetic disc driver Download PDFInfo
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- CN100431008C CN100431008C CNB2004800365857A CN200480036585A CN100431008C CN 100431008 C CN100431008 C CN 100431008C CN B2004800365857 A CNB2004800365857 A CN B2004800365857A CN 200480036585 A CN200480036585 A CN 200480036585A CN 100431008 C CN100431008 C CN 100431008C
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- Prior art keywords
- slide block
- actuator
- micro
- height adjuster
- magnetic head
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4826—Mounting, aligning or attachment of the transducer head relative to the arm assembly, e.g. slider holding members, gimbals, adhesive
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4853—Constructional details of the electrical connection between head and arm
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/4806—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
- G11B5/4873—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives the arm comprising piezoelectric or other actuators for adjustment of the arm
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
Abstract
A method and system for manufacture of a microactuator comprising a frame further including a base to connect with suspension and two moving arms to be connected parallel to said base, two piezoelectric elements to be respectively connected to said moving arm, and a slider height adjuster connecting with said moving arms to adjust the loading height of the slider.
Description
Technical field
The present invention relates to micro-actuator, magnetic head universal suspension support assembly and hard disk drive technology.Particularly, the present invention relates to micro-actuator, magnetic head universal suspension support assembly and the hard disk drive of the magnetic head of femto or smaller szie.
Background technology
In current technology, use diverse ways to improve the recording density of hard disk drive.Fig. 1 shows a kind of typical disk drive.When actuating arm (magnetic head universal suspension support assembly) 104 control heads 103 that driven by voice coil motor swam in the dish top, spindle drive motor 102 made dish 101 rotations.Usually, voice coil motor (VCM) is used to the motion that the controlling and driving arm is crossed magnetic hard disk, and it is placed in the middle around the spindle drive motor quilt.In present technique, owing to existing intrinsic tolerance limit (dynamic play) in utilizing the VCM positioning head separately, micro-actuator is used to the placement of " fine setting " magnetic head now.This makes that but littler magnetic track record width becomes possibility, and it has increased density or " per inch track part " value (TPI) of hard disk drive again.Fig. 1 b is the exploded view of the aforementioned components of Fig. 1 a.
Fig. 2 provides the explanation of the micro-actuator that uses in this technology.Described at disclosed patented claim JP2002-133803 and 2002-074871, slide block 202 (comprises W head; Not shown) be used to maintain the floating height (see figure 1) of the regulation of panel surface 101 tops.Fig. 2 a shows the magnetic head universal suspension support assembly (HGA) with " U " shape micro-actuator 206 and deflection division 215." U " shape micro-actuator can have two ceramic beams 203, has two piezo strips 208, this beam to be bonded on two points 204 of slide block 202 on each side of this beam, so that slide block can be independent of actuating arm 104 and the motion (see figure 1).Substrate 216 is affixed on the hinge 214.Fig. 2 b shows the view of the U-shaped micro-actuator that is coupled with head-slider 202.Fig. 2 c shows the side view of micro-actuator 206.Suspension tongue 210 is affixed to suspension dimple 211.Between the bottom of micro-actuator and suspension tongue, parallel gap is arranged.Under the help of three electric conducting spheres (for example gold goal or solder ball), micro-actuator is coupled on the suspension of each side of micro-actuator frame.Near four conducting spheres 205 the slide block trailing edge (for example gold goal in conjunction with or soldering tin block in conjunction with) with movable plate 212 electric coupling of magnetic head and suspension together.Head-slider and movable plate 212 directly are coupled.Along with the expansion and the contraction of piezo strip, U-shaped micro-actuator 206 will be out of shape.Thereby this will make the meticulous adjusting in the needed location of magnetic head become possibility.Shown in Fig. 2 d is that another uses the explanation of metal framework as micro-actuator.This micro-actuator comprises base portion 213, and to connect suspension and two transfer arms 203, it is connected to and is parallel to base portion.Two piezo strips 208 are installed to make things convenient for the meticulous adjusting of slide position along the outside of transfer arm 203.
Along with the improved fast development in the disk drive industry, manufacturing cost has become very crucial key element.For the wafer of concrete size, cost and turnout are inversely proportional to.Except that reducing production costs, main consideration is the size that reduces chip or magnetic head.In present industry, welcome is the slide block (slide block slightly) of 30% size, and femto slide block (20%) will enter batch process.In the near future, 15%, 10% even 5% slide block can be seen and industry can be introduced.Yet, difficulty be to allow so little slide block use present U-shaped micro-actuator because size (especially thickness) does not match with present designing requirement.And, thereby for adapting to the exterior vibration performance that thickness that so little magnetic head reduces micro-actuator has reduced device.In addition, this manufacture process that reduces the micro-actuator of thickness is very complicated and expensive.Therefore, this industry need have the magnetic head universal suspension support component design of unified micro-actuator design, and it does not need design is done any change so that adapt to the slide block of smaller szie in batch process.
Summary of the invention
According to the first aspect of the embodiment of the invention, a kind of micro-actuator is provided, comprise: framework, it comprises the substrate that is connected with suspension and parallel to each other and be connected in two transfer arms of described substrate; Two piezoelectric elements, it is connected respectively to described transfer arm; And the slide block height adjuster, it is connected the loading height with adjusting slider with described transfer arm.The loading height of wherein said slide block height adjuster adjusting slider air bearing surface, protruding upward with top surface from described framework.
Wherein said slide block height adjuster comprises two side stage rank that are connected to the top of each transfer arm, to keep the apparent surface of slide block air bearing surface; Wherein said slide block height adjuster has in conjunction with liner, is connected with the electrode pad with flexible print circuit and described slide block.Wherein said side stage rank are connected to each other.
Wherein said slide block height adjuster also comprises and is arranged on the board that has in conjunction with on the described side stage rank of liner, to be connected with described slide block.Wherein said side stage rank and described board are seamless.
Wherein said framework and described slide block height adjuster are metals.
Wherein said slide block height adjuster has in conjunction with liner and is connected with the electrode pad with flexible print circuit and described slide block.
According to the second aspect of the embodiment of the invention, a kind of magnetic head universal suspension support assembly is provided, comprise: slide block, it has and is used for reading of data from the disk/write to the disk magnetic head of data; Be coupled to the micro-actuator of described slide block, described micro-actuator further includes framework and two piezoelectric elements, wherein said framework comprises that substrate and two are parallel to each other and is connected in the transfer arm of described substrate that two piezoelectric elements are connected respectively to described transfer arm; Load the suspension of described slide block and micro-actuator; Be arranged on the flexible print circuit on the described suspension that is coupled to described slide block; And wherein said micro-actuator has the slide block height adjuster that is connected with described transfer arm to regulate the loading height of described slide block.
Magnetic head universal suspension support assembly according to embodiment of the invention second aspect also comprises the movable plate on the top of being coupled to described two transfer arms, and is arranged on board on the described movable plate to be electrically connected with described slide block and described flexible print circuit.
The loading height of wherein said slide block height adjuster adjusting slider air bearing surface, protruding upward with top surface from described framework.
Wherein said slide block height adjuster is two side stage rank that are connected to the top of each transfer arm, to keep the apparent surface of slide block air bearing surface; Wherein said slide block height adjuster has in conjunction with liner, is connected with the electrode pad with flexible print circuit and described slide block.
Wherein said slide block height adjuster also comprises and is arranged on the board that has in conjunction with on the described side stage rank of liner, to be connected with described slide block.Wherein said side stage rank are connected to each other.Wherein said side stage rank and described board are seamless.
Wherein said framework and described slide block height adjuster are made with metal.
Wherein said slide block height adjuster has in conjunction with liner and is connected with the electrode pad with flexible print circuit and described slide block.
According to the third aspect of the embodiment of the invention, a kind of disc driver is provided, comprise: dish, information is recorded on it; Slide block, it has from described dish and reads information/to the magnetic head of described dish writing information; Suspension, to support described slide block, described suspension is included in perpendicular to being flexible load beam on the direction of described dish; Micro-actuator, be used to make the micromotion that carries out of the described slide block that is arranged on the described suspension, wherein said micro-actuator has the framework that comprises substrate and two transfer arms, and wherein said substrate is connected with suspension, and two transfer arms are parallel to each other and be connected in described substrate; Described micro-actuator also comprises two piezoelectric elements, is connected respectively to described transfer arm; And the slide block height adjuster that is connected with described transfer arm is to regulate the loading height of described slide block.
Disc driver according to the third aspect of the embodiment of the invention, the movable plate that also comprises the top of being coupled to described two transfer arms, and being arranged on board on the described movable plate, described movable plate has in conjunction with liner to be electrically connected with described slide block and the flexible print circuit that is arranged on the described suspension.
Description of drawings
Shown in Fig. 1 a-b is the hard disk drive of prior art, comprises the magnetic head universal suspension support assembly.
What Fig. 2 illustrated is the micro-actuator that uses in this technology.
Fig. 3 a-d shows exploded view and the skeleton view that describes embodiments of the invention in detail.
Fig. 4 a-d shows exploded view and the skeleton view that describes embodiments of the invention in detail.
Fig. 5 a-d shows exploded view and the skeleton view that describes embodiments of the invention in detail.
Fig. 6 a-c shows exploded view and the skeleton view that describes embodiments of the invention in detail.
Fig. 7 a-c shows exploded view and the skeleton view that describes embodiments of the invention in detail.
Fig. 8 shows the process flow diagram that describes a method making embodiments of the invention in detail.
Embodiment
Fig. 3 shows one embodiment of the present of invention.U-shaped micro-actuator shown in Fig. 3 a comprises two transfer arms 303 and base portion 301.The partly canned point 320 of base portion 301 quilts to suspension.Head-slider 302 is coupled at their top 305 and 306 places with the transfer arm 303 and the back up pad 8000 (with reference to figure 3c and 3d) of U-shaped micro-actuator.Two piezo strips 304 are along sidepiece and two transfer arm 303 couplings.The trailing edge of head-slider and the top of transfer arm and movable plate 312 physically are coupled.Board 313 physically is coupled with movable plate 312.Four conducting sphere (for example gold goal or solder ball) 307 are electrically coupled to trace (trance) 309 with head-slider and head gimbals.Three conducting spheres 308 (gold goal or solder ball) on the U-shaped micro-actuator both sides are electrically coupled to trace 310 with micro-actuator and head gimbals.Fig. 3 b shows the cross-sectional view of Fig. 3 a.Fig. 3 c shows the detailed view of the equipment that does not have magnetic head 302.Back up pad 8000 is used to the height of adjusting slider, because the thickness of back up pad 8000 is provided for any height that needs the head-slider 302 of adjusting.The suitable height of slide block be can be at least from disk reading of data/the write height of data to disk.Therefore, need at least from the top surface of transfer arm 303 slide block air bearing surface protruding upward.The top surface of board 312 flushes with back up pad 8000, and board 312 is horizontally disposed with on back up pad 8000 side by side, and is connected with the liner of slide block.Board 312 also can be inserted between two tops of transfer arm, and is clipped in the middle of movable plate and the part head-slider.Fig. 3 d illustrates the base portion 301 of the U-shaped micro-actuator on the precalculated position that partly is positioned at suspension tongue 311.Board comprises that the trace 309 that is arranged on the movable plate is to be connected with the liner of head-slider.Fig. 3 e shows the lateral plan of current embodiment, and wherein head-slider partly is on the position 320 of suspension tongue 311.Suspension dimple 316 on the load beam 314 is supporting suspension tongue.Between the bottom of suspension tongue and micro-actuator, have parallel gap 315.This allows micro-actuator interference-free during voltage drive to move smoothly.In the present embodiment, even the slide block size becomes littler, by keep the slide block of smaller szie on current micro-actuator, back up pad 8000 (slide block height adjuster) can be kept the intensity of micro-actuator.
Fig. 4 illustrates an alternative embodiment of the invention.U-shaped micro-actuator shown in Fig. 4 a comprises base portion 401 and two transfer arms 402.The base portion 401 of micro-actuator is partly used suspension tongue 406 canned.Head-slider 404 is in 418 places, top and the transfer arm coupling (seeing Fig. 4 b) of both sides.Two piezo strips 403 are along outside and transfer arm coupling.Two transfer arms and the movable plate 409 of the trailing edge of head-slider and micro-actuator physically are coupled.Four conducting spheres 408 (gold goal combination or soldering tin block combination) are electrically coupled to trace 413 with head-slider 404 and head gimbals.Three conducting spheres 407 in U-shaped micro-actuator both sides are electrically coupled to trace 414 with micro-actuator and head gimbals.Fig. 4 b shows viewgraph of cross-section.Board 410 is positioned on the movable plate 409.Each transfer arm end of micro-actuator 401 has the side stage rank 419 as the slide block height adjuster.Fig. 4 c shows the U-shaped micro-actuator.In the present embodiment, head-slider is being supported on the side stage rank 419 on arm 418 two ends.The height on side stage rank 419 (thickness) plays the effect of regulating the head-slider height.This design allows the head-slider of smaller szie to be coupled to present micro-actuator and movable plate.Fig. 4 d provides the other detailed view of this embodiment of the present invention, describes aforesaid parts in detail.In the present embodiment, even the slide block size becomes littler, side stage rank 419 (slide block height adjuster) remains on the intensity of keeping micro-actuator on the present micro-actuator by the slide block with smaller szie.
Fig. 5 shows an alternative embodiment of the invention.Fig. 5 a shows the metal micro-actuator frame 500 that comprises two transfer arms 503 and base portion 501.Base portion 501 is by partly canned with suspension tongue.Head-slider 502 is in bottom side and back up pad 504 couplings, and back up pad 504 further is coupled to transfer arm 503.Piezo strip 514 (with reference to figure 5b) is along the outside of each transfer arm 503 and be coupled.Board 505 is sandwiched in the middle of top arms and the head-slider 502.The height of the thickness adjusted slide block by board 507.Four conducting spheres 507 (gold goal or solder ball) are electrically coupled to trace 512 with head-slider 502 and head gimbals.Three conducting spheres 506 in the micro-actuator both sides are electrically coupled to trace 513 with micro-actuator and head gimbals.Fig. 5 b shows detailed view, and this embodiment comprises slide block and top arms.Use such design to allow the head-slider of smaller szie to be coupled to the micro-actuator of present type.Fig. 5 c shows the detailed bottom side view of the head-slider that is coupled with top arms.In the present embodiment, even the slide block size becomes littler, board 505 (slide block height adjuster) remains on the intensity of keeping micro-actuator on the present micro-actuator by the slide block with smaller szie.
Fig. 6 shows an alternative embodiment of the invention with metal micro-actuator frame 600, and metal micro-actuator frame 600 comprises the micro-actuator that contains transfer arm 603 and base portion 601.Base portion 601 is by partly canned to suspension tongue.Head-slider 602 is in its bottom side and board 605 couplings, and board 605 further is coupled to top arms 604.Top arms 604 can be separated into two parts, and each several part has shaping step 615 (with reference to figure 6c).Piezo strip 616 is coupled along the outside of two transfer arms.Four conducting spheres 607 (gold goal or solder ball) are coupled to trace 612 with head-slider and suspension electrical.Three conducting spheres 606 in the micro-actuator both sides are coupled to trace 613 with micro-actuator and suspension electrical.Fig. 6 b shows the side view of head-slider 602, shaping step 615 and board 605.Fig. 6 c shows the bottom side view of head-slider 602, shaping step 615 and board 605.In the present embodiment, even the slide block size becomes littler, shaping step 615 (slide block height adjuster) remains on the intensity of keeping micro-actuator on the present micro-actuator by the slide block with smaller szie.Use such design to allow the head-slider of smaller szie to be coupled to the micro-actuator of present type.
Fig. 7 shows an alternative embodiment of the invention.This micro-actuator comprises two transfer arms 703 and base portion 701.Base portion 701 is by partly canned with suspension tongue.Piezo strip 715 is coupled along the outside of each transfer arm of micro-actuator.The trailing edge of head-slider and the top arms of micro-actuator and board 705 physically are coupled.Four conducting spheres 707 (gold goal combination or soldering tin block combination) are coupled to trace 712 with head-slider and suspension electrical.Three conducting spheres 706 in the micro-actuator both sides are electrically coupled to trace 713 with micro-actuator and head gimbals.Fig. 7 b shows another view, head-slider and board 705 couplings.Board has shaping step 716 on the static position of regulating with permission slide block height of head-slider.By being arranged on this height of the shaping step 716 on the board 705, come the height of adjusting slider.The alternative view that Fig. 7 c shows aforementioned micro-actuator with and peripherals.Use such design to allow the head-slider of smaller szie to be coupled to the micro-actuator of same type.In the present embodiment, even the slide block size becomes littler, shaping step 716 (slide block height adjuster) remains on the intensity of keeping micro-actuator on the present micro-actuator by the slide block with smaller szie.
Fig. 8 shows the process flow diagram of manufacturing according to the embodiment of the method for the micro-actuator device of embodiments of the invention.From step 801, in step 802, back up pad 8000 is inserted in the micro-actuator 8012, and uses the epoxy resin (not shown) slide block 8011 to be installed to the top arms 8013 of micro-actuator 8012.In process 803, UV light 8014 cured epoxy resins are with this fixedly combination between slide block and the micro-actuator top arms.In step 804, use the epoxy resin (not shown) that slide block 8011 and micro-actuator 8012 parts are installed (canned) to suspension 8015.In step 805, UV light 8014 cured epoxy resins are so that paste the base portion of suspension and micro-actuator.In process 806, conducting sphere 8016 is used to be electrically connected slide block and suspension.Conducting sphere 8017 is used to electric coupling micro-actuator and suspension tongue.In step 807, constant temperature oven well heater 8018 is used to help abundant cured epoxy resin, is connected fully in good condition to guarantee slide block 8011, micro-actuator 8012 and suspension 8015.
Claims (19)
1. micro-actuator comprises:
Framework, it comprises the substrate that is connected with suspension and parallel to each other and be connected in two transfer arms of described substrate;
Two piezoelectric elements, it is connected respectively to described transfer arm; And
The slide block height adjuster, it is connected the loading height with adjusting slider with described transfer arm.
2. micro-actuator as claimed in claim 1, the loading height of wherein said slide block height adjuster adjusting slider air bearing surface, protruding upward with top surface from described framework.
3. micro-actuator as claimed in claim 1, wherein said slide block height adjuster comprise two side stage rank that are connected to the top of each transfer arm, to keep the apparent surface of slide block air bearing surface; Wherein said slide block height adjuster has in conjunction with liner, is connected with the electrode pad with flexible print circuit and described slide block.
4. micro-actuator as claimed in claim 3, wherein said slide block height adjuster also comprise and are arranged on the board that has in conjunction with on the described side stage rank of liner, to be connected with described slide block.
5. micro-actuator as claimed in claim 3, wherein said side stage rank are connected to each other.
6. micro-actuator as claimed in claim 1, wherein said framework and described slide block height adjuster are metals.
7. micro-actuator as claimed in claim 4, wherein said side stage rank and described board are seamless.
8. micro-actuator as claimed in claim 1, wherein said slide block height adjuster have in conjunction with liner and are connected with the electrode pad with flexible print circuit and described slide block.
9. magnetic head universal suspension support assembly comprises:
Slide block, it has and is used for reading of data from the disk/write to the disk magnetic head of data;
Be coupled to the micro-actuator of described slide block, described micro-actuator further includes framework and two piezoelectric elements, wherein said framework comprises that substrate and two are parallel to each other and is connected in the transfer arm of described substrate that two piezoelectric elements are connected respectively to described transfer arm;
Load the suspension of described slide block and micro-actuator;
Be arranged on the flexible print circuit on the described suspension that is coupled to described slide block; And
Wherein said micro-actuator has the slide block height adjuster that is connected with described transfer arm to regulate the loading height of described slide block.
10. magnetic head universal suspension support assembly as claimed in claim 9 also comprises the movable plate on the top of being coupled to described two transfer arms, and is arranged on board on the described movable plate to be electrically connected with described slide block and described flexible print circuit.
11. magnetic head universal suspension support assembly as claimed in claim 9, the loading height of wherein said slide block height adjuster adjusting slider air bearing surface, protruding upward with top surface from described framework.
12. magnetic head universal suspension support assembly as claimed in claim 9, wherein said slide block height adjuster are two side stage rank that are connected to the top of each transfer arm, to keep the apparent surface of slide block air bearing surface; Wherein said slide block height adjuster has in conjunction with liner, is connected with the electrode pad with flexible print circuit and described slide block.
13. also comprising, magnetic head universal suspension support assembly as claimed in claim 12, wherein said slide block height adjuster be arranged on the board that has in conjunction with on the described side stage rank of liner, to be connected with described slide block.
14. magnetic head universal suspension support assembly as claimed in claim 12, wherein said side stage rank are connected to each other.
15. magnetic head universal suspension support assembly as claimed in claim 13, wherein said side stage rank and described board are seamless.
16. magnetic head universal suspension support assembly as claimed in claim 9, wherein said framework and described slide block height adjuster are made with metal.
17. having in conjunction with liner, magnetic head universal suspension support assembly as claimed in claim 9, wherein said slide block height adjuster be connected with electrode pad with flexible print circuit and described slide block.
18. a disc driver comprises:
Dish, information is recorded on it;
Slide block, it has from described dish and reads information/to the magnetic head of described dish writing information;
Suspension, to support described slide block, described suspension is included in perpendicular to being flexible load beam on the direction of described dish;
Micro-actuator is used to make the described slide block that is arranged on the described suspension to carry out micromotion; Wherein said micro-actuator has the framework that comprises substrate and two transfer arms, and wherein said substrate is connected with suspension, and two transfer arms are parallel to each other and be connected in described substrate; Described micro-actuator also comprises two piezoelectric elements, is connected respectively to described transfer arm; And
The slide block height adjuster that is connected with described transfer arm, the loading height that is used to regulate described slide block.
19. disc driver as claimed in claim 18, the movable plate that also comprises the top of being coupled to described two transfer arms, and being arranged on board on the described movable plate, described movable plate has in conjunction with liner to be electrically connected with described slide block and the flexible print circuit that is arranged on the described suspension.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2004/000097 WO2005078708A1 (en) | 2004-02-05 | 2004-02-05 | Microactuator, head gimbal assembly and magnetic disk drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1890716A CN1890716A (en) | 2007-01-03 |
| CN100431008C true CN100431008C (en) | 2008-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800365857A Expired - Fee Related CN100431008C (en) | 2004-02-05 | 2004-02-05 | Micro-actuator, magnetic head universal suspension support assembly and magnetic disc driver |
Country Status (3)
| Country | Link |
|---|---|
| US (2) | US20050174699A1 (en) |
| CN (1) | CN100431008C (en) |
| WO (1) | WO2005078708A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7345406B2 (en) * | 2001-01-18 | 2008-03-18 | Ngk Insulators, Ltd. | Piezoelectric/electrostrictive device |
| US7411764B2 (en) * | 2005-09-30 | 2008-08-12 | Sae Magnetics (H.K.) Ltd. | Head gimbal assembly with precise positioning actuator for read/write head and disk drive device with the head gimbal assembly |
| US20080180856A1 (en) * | 2007-01-31 | 2008-07-31 | Toshiki Hirano | Method and apparatus for a microactuator bonding pad structure for solder ball placement and reflow joint |
| US20080198511A1 (en) * | 2007-02-20 | 2008-08-21 | Toshiki Hirano | Suspension for a hard disk drive microactuator |
| US8199438B2 (en) * | 2009-01-15 | 2012-06-12 | Seagate Technology International | In-situ dynamic pitch and roll adjustment in hard disk drives |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5856896A (en) * | 1996-12-04 | 1999-01-05 | Seagate Technology, Inc. | Gimbal suspension for supporting a head in a disc drive assembly |
| CN1347078A (en) * | 2000-08-24 | 2002-05-01 | Tdk株式会社 | Magnetic head actuator and related gimbal assembly, making method thereof and related magnetic disk drive |
| US20020154446A1 (en) * | 2001-04-23 | 2002-10-24 | Tamon Kasajima | Head gimbal assembly with precise positioning actuator for head element |
| JP2003263851A (en) * | 2002-03-07 | 2003-09-19 | Tdk Corp | Actuator for fine positioning of head element, head gimbal assembly equipped with the actuator, and disk drive equipped with the head gimbal assembly |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2884774B2 (en) * | 1990-12-01 | 1999-04-19 | 株式会社日立製作所 | Information storage device and its manufacturing method |
| US5473485A (en) * | 1992-03-06 | 1995-12-05 | Read-Rite Corporation | Tripad air bearing magnetic head slider |
| US6246552B1 (en) * | 1996-10-31 | 2001-06-12 | Tdk Corporation | Read/write head including displacement generating means that elongates and contracts by inverse piezoelectric effect of electrostrictive effect |
| US6108175A (en) * | 1996-12-16 | 2000-08-22 | Seagate Technology, Inc. | Bimorph piezoelectric microactuator head and flexure assembly |
| US6215629B1 (en) * | 1998-04-16 | 2001-04-10 | Seagate Technology Llc | Unitary synchronous flexure microactuator |
| US6735055B1 (en) * | 1998-05-07 | 2004-05-11 | Seagate Technology Llc | Microactuator structure with vibration attenuation properties |
| US6320730B1 (en) * | 1998-09-26 | 2001-11-20 | Seagate Technology Llc | Low-stress disc drive microactuator cradle |
| US6952330B1 (en) * | 1999-06-11 | 2005-10-04 | Seagate Technology Llc | Dynamic flying attitude control using augmented gimbal |
| US6473259B1 (en) * | 1999-09-24 | 2002-10-29 | Seagate Technology Llc | Disk head height control |
| US6657364B1 (en) * | 1999-10-01 | 2003-12-02 | Ngk Insulators, Ltd. | Piezoelectric/electrostrictive device |
| US6574077B1 (en) * | 1999-12-02 | 2003-06-03 | Seagate Technology Llc | Microactuator assembly having improved standoff configuration |
| WO2001097296A1 (en) * | 2000-06-16 | 2001-12-20 | Ngk Insulators, Ltd. | Piezoelectric/electrostrictive device and method of producing the same |
| JP2002133803A (en) * | 2000-10-31 | 2002-05-10 | Tdk Corp | Very small positioning actuator for head element, head gimbal assembly equipped with the actuator, disk device equipped with the head gimbal assembly, actuator manufacturing method, and head gimbal assembly manufacturing method |
| US6611399B1 (en) * | 2000-12-07 | 2003-08-26 | Seagate Technology Llc | Micro-actuated micro-suspension(MAMS) slider for both fly height and tracking position |
| JP2002298526A (en) * | 2001-04-02 | 2002-10-11 | Shinka Jitsugyo Kk | Actuator for finely positioning head element, head gimbal assembly provided with the actuator, and method for manufacturing the head gimbal assembly |
| JP3975688B2 (en) * | 2001-04-23 | 2007-09-12 | 新科實業有限公司 | Head element micropositioning actuator, head gimbal assembly provided with the actuator, and method of manufacturing the actuator |
| US6376964B1 (en) * | 2001-05-16 | 2002-04-23 | Read-Rite Corporation | Collocated rotating flexure microactuator for dual-stage servo in disk drives |
| US7130160B2 (en) * | 2004-01-13 | 2006-10-31 | Samsung Electronics Co., Ltd. | Method and apparatus for a micro-actuator providing three-dimensional positioning to a slider in a hard disk drive |
| US6930860B1 (en) * | 2002-02-12 | 2005-08-16 | Maxtor Corporation | Micro-flexure suspension including piezoelectric elements for secondary actuation |
| US6738231B2 (en) * | 2002-04-24 | 2004-05-18 | Hitachi Global Storage Technologies Netherlands B.V. | Piezoelectric microactuator for slider side actuation |
| CN100416658C (en) * | 2002-06-26 | 2008-09-03 | 新科实业有限公司 | A collocated metal frame PZT micro-actuator with a lower stiffness suspension design |
| WO2004019321A1 (en) * | 2002-08-26 | 2004-03-04 | Sae Magnetics (H.K.) Ltd. | A suspension design for the co-located pzt micro-actuator |
| JP2004283911A (en) * | 2003-03-03 | 2004-10-14 | Shinka Jitsugyo Kk | Method for mounting magnetic head parts, magnetic head device and method for manufacturing magnetic head device |
-
2004
- 2004-02-05 CN CNB2004800365857A patent/CN100431008C/en not_active Expired - Fee Related
- 2004-02-05 WO PCT/CN2004/000097 patent/WO2005078708A1/en active Application Filing
- 2004-11-19 US US10/993,832 patent/US20050174699A1/en not_active Abandoned
-
2005
- 2005-10-26 US US11/260,744 patent/US20060098348A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5856896A (en) * | 1996-12-04 | 1999-01-05 | Seagate Technology, Inc. | Gimbal suspension for supporting a head in a disc drive assembly |
| CN1347078A (en) * | 2000-08-24 | 2002-05-01 | Tdk株式会社 | Magnetic head actuator and related gimbal assembly, making method thereof and related magnetic disk drive |
| US20020154446A1 (en) * | 2001-04-23 | 2002-10-24 | Tamon Kasajima | Head gimbal assembly with precise positioning actuator for head element |
| JP2003263851A (en) * | 2002-03-07 | 2003-09-19 | Tdk Corp | Actuator for fine positioning of head element, head gimbal assembly equipped with the actuator, and disk drive equipped with the head gimbal assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1890716A (en) | 2007-01-03 |
| US20050174699A1 (en) | 2005-08-11 |
| US20060098348A1 (en) | 2006-05-11 |
| WO2005078708A1 (en) | 2005-08-25 |
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